Pontiac 2008 grand prix Automobile User Manual


 
Reducing Speed While Using
Cruise Control
There are two ways to reduce the vehicle’s speed while
using cruise control:
Press and hold the set button until you reach the
lower speed desired, then release it.
To slow down in very small amounts, briefly press
the set button. Each time this is done, the vehicle
will slow down about one mph (1.6 km/h).
Passing Another Vehicle While
Using Cruise Control
Use the accelerator pedal to increase the vehicle’s
speed. When you take your foot off the pedal, the
vehicle will slow down to the cruise control speed
set earlier.
Using Cruise Control on Hills
How well the cruise control will work on hills depends
upon the vehicle’s speed, its load, and the steepness of
the hills. When going up steep hills, the accelerator
pedal might have to be used in order to maintain
the vehicle’s speed. When going downhill, the brakes
might have to be applied, or the transmission might have
to be shifted to a lower gear to keep the vehicle’s
speed down. Doing either of these things will take the
vehicle out of cruise. It may be better not to use
the cruise control if the brakes constantly have to be
applied, or the vehicle continuously needs to be shifted
to a lower gear.
Ending Cruise Control
There are two ways to turn off the cruise control:
Step lightly on the brake pedal.
Move the cruise control switch to off.
Erasing Speed Memory
The cruise control set speed memory is erased when
the cruise control or the ignition is turned off.
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